Speaker
sudipta show
Description
We examine a singlet-doublet fermion dark matter where the incorporation of a small Majorana mass term for the singlet fermion helps evade the severe direct detection constraint by making the dark matter pseudo-Dirac. Interestingly, the same mass term provides a platform to address the non-zero neutrino mass in the presence of singlet scalars. In addition, we discuss the realization of the freeze-in production of dark matter in the same setup. Here, a light scalar mediator present in our framework can mediate a large self-interaction for the fermion dark matter, which is capable of solving the small-scale structure anomalies of the Universe.
| Session | Beyond the Standard Model |
|---|
Primary author
Co-authors
Dr
Abhijit Kumar Saha
(Indian Association for the Cultivation Of Science)
Prof.
Partha Konar
(Physical Research Laboratory)
Dr
Purusottam Ghosh
(Indian Association for the Cultivation Of Science)
